In humans, pharyngeal slits are presents in the embryo and develop into the the ears
Answer:
a.) 12 Newtons
b.) Same Direction
c.) Unbalanced
Explanation:
The system shows 2 individual forces:
A force of 5 N pulling the box LEFT
A force of 7N pushing the box LEFT
Both forces are LEFT, so they have the same direction.
Since the parallel forces both have the same direction, regardless of whether it's a push or pull or what side of the box the force acts upon, the resultant force will be the sum of the two forces in their direction:
Resultant force's magnitude is then: 5N + 7N = 12N
Resultant force's direction: unchanged = LEFT
Since the resultant force's magnitude is not 0, the system is unbalanced.
The answer is a. natural selection.
<span>In natural selection, genotype variations that will increase
the chance of survival and reproduction of some organism are preserved and will
be inherited. Darwin's theory suggested that there are variations among
individuals in a population and that these variations will help individuals to
survive. According to Darwin, natural selection is the only factor that affects frequency of different variations.</span>
The valinomycin treatment caused a decrease in the activity of the mitochondria.
Explanation:
When valinomycin treatment was given, the rate of ATP production is reduced in the cells treated. Since mitochondria are involved in ATP synthesis, it clearly shows that valinomycin inhibits mitochondrial action.
Valinomycin being a selective K+ ionophore, it can transfer potassium ions through selective lipid membranes. This can cause potassium effux in organelles like mitochondria leading to marked loss of potential of mitochondrial membrane and apoptosis in cells.
The effux of K+ ions forms a complex with valinomycin and slows down the mitochondrial part of ATP synthesis by reducing the proton-motive force, but does not block any oxygen electron transfer
.
Answer:
So if there were no green plants, no food will be available for the other living organisms. ... During respiration, organisms use this oxygen for releasing energy. Without these 2 important aspects of food and oxygen, it would be difficult for life to survive on earth.
Explanation:
